Riving-hachiwe



A. KENDALL, OF CLEVELAND, OHIO.

RIVING-MACHINE.

Specification of Letters Patent No. 11,649, dated September 5, 1854.

T0 all whom t may concern Be it known that I, A. KENDALL, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in a Machine for Riving Timber for Shingles, Staves, Barrel-Heads, and other Similar Purposes; and I do hereby declare that the following is an exact and full description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon.

Figure 1 in the drawings, is a plan view of my improved machine, Fig. 2 a longitudinal section in the direction of the line X X,

in Fig. 1, Fig. 3, a front end view, and Fig. l a transverse section in the direction of the lines X X in Fig. l. Figs. 5 and 6, will hereafter be referred to.

Similar letters in the several figures, represent the same parts. I

A A, represent a framework of wood, constructed in any suitable manner, for the purpose of securing in place by suitable devices, the several parts composing the machine.

B B B B are boxes bolted to the top plate of the frame, in which revolve the shafts C C; to the shafts C C', are keyed the gear and pinion, D D. To the shaft C, is attached the driving wheel E, Figs. l and 2; and to the shaft C, are secured the cranks F F; these cranks are connected to the carriage Gr by the connecting rods H H, Figs. l and 4. The carriage Gr, has a reciprocating motion on the slide I I, which are bolted to the frame. To the top of the carriage is bolted the knife J. The carriage is connected to the drivers K K', by connecting rods L L, and L L. The rods are attached to the carriage by a wrist, and to the drivers by jam nuts, as seen in Figs. l and 2. The drivers are provided with arms as seen in Figs. 2 and 3, which slide in t-he openings M, of the grate plates M M, which are placed one above the other, and secured by bolts and nuts with the side pieces of the frame.

By means of the cranks, a reciprocating motion is given to the carriage, which is connected to the drivers by the connecting rods L L and L L. When the cranks are in the forward centers, the driving arms O, attached to the carriage, are at .the knife P, Figs. l and 2, which allows sucient space between the knife J, and the brace Q, for the bolt, which rests upon the springs R,

which are secured in the middle part of the carriage. The back end of the middle spring, is curved up above the other, for the purpose of allowing the uneven or winding face of the bolt to be parallel, as near as possible, to the piane of the knife, which causes the blocks to have parallel faces. When the bolt is thus in place, upon the springs, by one half revolution of the cranks, thecarriage returns, which brings the knife. J, over the brace Q, which is stationary, thereby severing from the bolt a block suiiicient for four shingles. On the insta-nt that the block is severed from the bolt, it drops upon the table springs S, and ribs T, and assumes the position indicated by the rod lines U, Fig. 2; at another half revolution of the crank, it is forced by the driving arms O, against t-he knife P, by which it is divided into two blocks as seen at V V Fig. 2. As soon as the block U, is divided into the blocks V V, the drivers K K are in the place 7s c, as seen at K K Fig. 6, by which the blocks V V are conveyed to the knives IV W, as seen at V V', by which means the knives W W, again divided the two blocks into four as seen at X X. At every revolution of the crank, four blocks are rived and discharged, ready for further finishing according to the purpose for which the blocks may be required.

As the drivers K K have a reciprocating motion, corresponding to that of the carriage, the drivers are always ready at It* 70', to convey the blocks from the knife P, to the knives IV W the driving arms O, force the block U as soon as cut, from the bolt, against the knife P, which divides it as seen at V V, to be again divided, as before de scribed. The block U is rived off from the bolt by the knife J, as the carriage G, and drivers ret-urn. Thus alternately, as the carriage drivers return in the direction of the arrow, the block is rived from the bolt, and instantly falls upon the spring s, and rib T,

and as the carriage returns in a reverse di-` rection of the arrow, the block is halved and quartered as set forth, which accomplishes the desired object, that of first riving from the bolt, a block, which will be divided, first into two, and then into four blocks.

For the purpose of keeping the block in place, as it falls upon the springs s, and rib T, the guides Y Y, are raised by the lever a,

as the projecting end Gr, of the carriage, passes over the end of the lever; 1n riding p the belt, as the end at a', is depressed,the end attached to the arm Y', is raised,'but as soon as the carriage leaves the lever, the guides fall allowing the carriage Ato pass over them. a", is the shaft of the lever. The lever O, is secured by bolts to the grate plate M'.

, is a cross plate attached to the sides, to`

and from the carriage, but extend back overthecarriage to O" Fig. 2, and to prevent ythe driving arms O', Yfrom striking the knife P, it is raised by theplanes e e at each side of the grate plates as seen 1n `Figsfl and 2.

The arms 25 z5, being attached to the driving arms, slide upon the faces e c, and open the driving arms as they reach the knife l?, so that the blocks are forced over the edge of the knife, so. as to be taken by the drivers K K' to the knives W W7. The side plates g g, Figs. l, 3, 5, vand,.6,.are secured tothe side pieces of the grate plates bytwo braces 7c and L z.' and the boltsz" z". In the side plates g g, aregrooves or channels for giving` the proper direction to the drivers K K', and the ends, which are of an oval form, are so fitted to the channel asito have an easy action.

rIhe driver K' ltakes the channel y, and the driver K takes the channel m, in conveying the block fromthe knife P, tothe knives W W, and as the drivers approach the knives YV W, they gradually `separate by the inclination, or wedge shape, of thecenter ,piece o'. Y`The ,driver K', as it4 nears the knife "W, ascends the plane, and passes over the knife, in ascending the plane, the tumbler vZ, is raised which drops as soon as thedriver has passed it, bythe reaction of the driver it ascends the plane caused by the tumbler, and returns through the upper channel j', at the end of which it .drops down to the center piece g', bythe knife P, as seenk at K' Figs. 5 and 6.

The driver K, in conveying the block, from the knife vP, to W, takes the channel m, and as soon as it reaches the endof the channel, drops down and passes under the knife lW,V and returns in the lower channel, m', Yuntilit arrives at the` end, when it is thrown up to the knife P, vas seen at 7c K, Figs. 2 and l6by the springs n, n, which are bolted to the frame, as seen in Figs. 2 and rlhe upper driv-' The lower driver K, may be raised withtarding the driver in the upper channel.

Another device, for raising the driver K, isseen in Figo, and consists of the lever p, attached to the same shaft as the lever a, and operated in similar manner by a projection ofthe. carriage on'the lever, which will act when thedriver is raised in place, where it is caught bf the springs Q, one or more, which hold it so as to slide into the upper channel Ym.' ,The spring is forced back by the driver until it is raisedby the lever, when it rsprings outfas seen at g, and the lever drops. y

r r, are bars or slideson the carriage, upon which rests the. brace Q; thesebars or slidesaid in support of the brace, when the bolt is rbeing rived. S S, are the jaws of the carriage by which fit is attached to l'the slides II, Fig. 4.

`What I claim as my improvement, and desire to secure by Letters Patent, is-

l. The sliding knife J, braceQ, springs S, driving arms@ O',.theupper .ariubeing separated Afrom the lower and the planes ce, for raisingthe upper arm yfrom the knife P, while the lower arm Apassesunder. The several parts named I claini, `in combination, for` the purpose ofY cutting va block from a b olt, and conveying it to the ,knife l?, to be divided into twofblocks, :ready to becarried forward by the drivers K .K',.to be again divided by-the knives W WV.

2. The combination Yof the lupper springs a" and @'the lowerj springs c, Iclcl'pknives W YV, and the reciprocating drivers .K K', for' the purpose Yof conveying the blocks divided by the knife P, fromit to theknives W W, vbyiwhich theyvare again divided.

3. ,The twoside piecesg g, provided with grooves or channels m,.m,.and j j,.withthe tumbler Z2, the middle channels m, and j', being ofy such inclination that ythe drivers K, ascend in passing from the knife P, to W WV, and ret-urn by means of the tumbler, in the channely". Thedriver ZK, descends in passing from the knife l), to FV, andreturns inthe channel m', and is thrown up in place by the springs n. i

4.1 claim also, the combination of the grate plates, with the tumblers .Z Z, and springs n n, or other equivalent devices, for the purpose of giving t-he proper direction to the reciprocating drivers, in .themannen and for the purpose set forth.

ADONIRAM KENDALL. f 

